Induction hardening is a heat treatment technique used for improving the wear resistance of steel parts by selectively hardening their surface layer while retaining their toughness. Intense heat is applied via electromagnetic waves on the surface of the metal part, heating it up and then cooling it down rapidly with water or oil. This creates a hardened outer layer while maintaining the strength of the inner core.The end result is an object that can withstand high levels of stress, impact, and wear without breaking down. Induction hardening is constantly used in various industries including automotive companies, tool makers, and manufacturing plants to create long-lasting and durable machine parts.